Having just launched its latest super mid-range smartphones, Sony will turn its attention to the next flagship launch which is surely just around the corner. If a recent leak holds any truth, the next Xperia could jump on the fingerprint sensor bandwagon and incorporate the feature in to its side-mounted power button.

An image tweeted by Vizileaks shows what it claims to be the next generation Xperia Z and Z Compact separated by an iPhone 5s. For the sake of saving confusion, we’ll call them the Xperia Z5 and Z5 Compact for now.

What’s really interesting about these images is that they clearly show fingerprint recognition setup screens on the display. The closest device (Z5) shows the progress icon, which isn’t too dissimilar to those we’ve seen on other phones. Look at the furthest phone and you can see a tutorial screen clearly showing the user how to register the fingerprint; by placing their thumb on the power button.

This power button seems vastly different in design to previous Xperia phones. It’s a large, pill-shaped button rather than a tiny, fiddly round button like the one featured on the Z3.

Like previous iterations of Xperia, it would appear that the next pair will feature very similar form factors to every other Android-based Sony smartphone in recent history. Although unsurprising, that is a little disappointing.

Sony announced a new Xperia Z at IFA last year, and we wouldn’t be surprised if the company chose to refresh its lineup once again at the Berlin tech show. It would fit in with the manufacturer’s release schedule, although there’s no guarantee Sony will choose to do so this year.